YSI 556 MPS User Manual
Page 27
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Probe Module
Section 3
YSI Incorporated
YSI 556 MPS
Page 21
Conductivity/Temperature and pH, pH/ORP Sensor Installation
1. Unscrew and remove the probe sensor guard.
2. Using the sensor installation tool supplied in the YSI 5511
maintenance kit, unscrew and remove the sensor port plugs.
Figure 3.2 Port Plug Removal
3. Locate the port with the connector that corresponds to the
sensor that is to be installed.
pH or pH/ORP port
Dissolved Oxygen
port
Conductivity/Temperature
port
Figure 3.3 Sensor Port Identification
4. Apply a thin coat of o-ring lubricant (supplied in the YSI
5511 maintenance kit) to the o-rings on the connector side of
the sensor (see Figure 3.4 O-ring Lubrication).
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